Walther SMS-02 Assembly Instructions Manual - 3 Transport
Rev. 1.2
Assembly Instructions - Spray Valve SMS-02
Page 7 of 34
Walther Systemtechnik GmbH
– D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de
– info@walther-2000.de
3 Transport
3.1 Packaging
The type of packaging depends on the individual mode of shipping. If not separately contracted, the
packaging is in accordance with the rules and regulations of Walther Systemtechnik GmbH. This rule is in
accordance with the Federal Association for Packaging HPE.
3.2 Tasks before Transport
The following has to be done before transport:
Disconnect all power lines.
The actual transport of the incomplete device and its individual parts requires special care in order to prevent
damages from external forceful impact or careless on- and off-loading. Depending on the mode of
transportation, suitable transport and load securing has to be selected. The incomplete device will be aligned
and leveled by appropriate fastening elements
.
4 Description of Function
The spray valves of SMS-02 series are suitable for the application of liquid up to viscous media, such as
grease, oil, separating agents, colors or glues. One of the major characteristics of SMS-02 series is the
integrated spray air valve with which you can adjust the post-spray duration for cleaning the nozzles.
Depending on the individual air cap, a round or flat jet is produced. And depending on the viscosity of the
applicable medium, the application image can be adjusted individually via the nozzle size or the atomized air
pressure or also the material pressure. Three different hoses are supplying atomized air, control air and
medium.
4.1 Purpose of the Device
CAUTION
The use of other media can cause functional failures, damages or even the destruction of the
device.
Spray valve SMS-02 is a pneumatically controlled application device for processing sprayable materials,
such as glues, grease, colors etc. The control air lines were kept short due to a directly flanged 5/2-way
magnetic valve (17.0.0) and they produce fast and very precise open/close movements of the needle (7.0.0).
The working piston is firmly connected to the needle (7.0.0) and receives air pressure from the 5/2-way
magnetic valve for the larger piston surface. This results in the opening movement of the needle. As soon as
the air pressure on the larger surface of the working piston is turned off, the control air on the smaller surface
of the working piston will initiate the closing movement.
During the operation, the closing spring (9.6.3) is disabled. This happens through the control air which is
permanently pending on the smaller working surface and which also simultaneously compresses the closing
spring (9.6.3) above the closing piston (9.8.3). Thereby the closing spring cannot hamper the fast switching
times of the needle. The closing spring will only be operational in case of failure or turn-off of the compressed
air supply. This will guarantee that no sprayable medium will be released during a defect in the air supply.
The device uses pre-supply/after-supply air (Setting-up of System, see also 6.3) for cleaning the nozzle
(2.1.0).
The device is used for spraying applications. The material pressure has to correspond with the desired spray
image and also with the atomizing air pressure. Spraying can be intermitting as well as continuous. The
control air pulses will be transferred via the 5/2-way magnetic valve (17.0.0) to the working piston.
Depending on the individual case of operation, it is important to adapt the control air pressure to the
switching frequency. For 5 intermissions already, this pressure has to be set to 5 bar.